Sierra 18-3473 Yamaha Water Pump Repair Kit w/ HousingThe Sierra 18-3473 Yamaha Water Pump Repair Kit is for F4 & F6 (2009-20018) Yamaha.Kit Contains: (1) 18-3073 Impeller; (1) 18-4567 Water Pump Housing; (1) 18-4546 Insert Cup; (1) 18-4573 Outer Wear Plate; (1) 18-60541 Water Pump Gasket; (1) 18-1840 Water Damper Seal; (2) 18-43716 Impeller Pin; (4) SS M6-1.0X45 Bolt; Interchangeable with: Yamaha; 6BX-WG078-00-00; 6EE-W0078-00-00;